[Vm-dev] Alien on Spur and "el capitan"?

Esteban Lorenzano estebanlm at gmail.com
Mon Oct 19 16:31:48 UTC 2015


Hi, 

Does anyone tested Alien on Spur and "El capitan"? specifically callbacks?
For me, a completely broken :(

1) this structure (in maybeInlinePositive32BitIntegerFor: and others): 

	(integerValue >= 0
	 and: [objectMemory isIntegerValue: integerValue]) ifTrue:
		[^objectMemory integerObjectOf: integerValue].

Does not works if “integer value” is an unsigned long, because compiler assumes it will always be true, then remove the if, then answers a wrong value. 

2) assertCStackWellAligned always fail. No idea why because if does not says anything, just jmp back to the regular flow. 

3) finally, ceCaptureCStackPointers also fails… this can be because (2) or because other reasons (it also jmps back so no clue) (method generateCaptureCStackPointers: clarifies is a hack, so I suppose it stopped to work). 

I guess solution of (1) is easy: argument number just has to be a sqLong instead an unsigned long. 

But for 2 and 3 I have no idea where to start.

Does anyone has an idea?

Esteban

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